/**
 * Software License, Version 1.0
 * 
 * Copyright 2003 The Trustees of Indiana University.  All rights reserved.
 * 
 *
 *Redistribution and use in source and binary forms, with or without 
 *modification, are permitted provided that the following conditions are met:
 *
 *1) All redistributions of source code must retain the above copyright notice,
 * the list of authors in the original source code, this list of conditions and
 * the disclaimer listed in this license;
 *2) All redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the disclaimer listed in this license in
 * the documentation and/or other materials provided with the distribution;
 *3) Any documentation included with all redistributions must include the 
 * following acknowledgement:
 *
 *"This product includes software developed by the Community Grids Lab. For 
 * further information contact the Community Grids Lab at 
 * http://communitygrids.iu.edu/."
 *
 * Alternatively, this acknowledgement may appear in the software itself, and 
 * wherever such third-party acknowledgments normally appear.
 * 
 *4) The name Indiana University or Community Grids Lab or NaradaBrokering, 
 * shall not be used to endorse or promote products derived from this software 
 * without prior written permission from Indiana University.  For written 
 * permission, please contact the Advanced Research and Technology Institute 
 * ("ARTI") at 351 West 10th Street, Indianapolis, Indiana 46202.
 *5) Products derived from this software may not be called NaradaBrokering, 
 * nor may Indiana University or Community Grids Lab or NaradaBrokering appear
 * in their name, without prior written permission of ARTI.
 * 
 *
 * Indiana University provides no reassurances that the source code provided 
 * does not infringe the patent or any other intellectual property rights of 
 * any other entity.  Indiana University disclaims any liability to any 
 * recipient for claims brought by any other entity based on infringement of 
 * intellectual property rights or otherwise.  
 *
 *LICENSEE UNDERSTANDS THAT SOFTWARE IS PROVIDED "AS IS" FOR WHICH NO 
 *WARRANTIES AS TO CAPABILITIES OR ACCURACY ARE MADE. INDIANA UNIVERSITY GIVES
 *NO WARRANTIES AND MAKES NO REPRESENTATION THAT SOFTWARE IS FREE OF 
 *INFRINGEMENT OF THIRD PARTY PATENT, COPYRIGHT, OR OTHER PROPRIETARY RIGHTS. 
 *INDIANA UNIVERSITY MAKES NO WARRANTIES THAT SOFTWARE IS FREE FROM "BUGS", 
 *"VIRUSES", "TROJAN HORSES", "TRAP DOORS", "WORMS", OR OTHER HARMFUL CODE.  
 *LICENSEE ASSUMES THE ENTIRE RISK AS TO THE PERFORMANCE OF SOFTWARE AND/OR 
 *ASSOCIATED MATERIALS, AND TO THE PERFORMANCE AND VALIDITY OF INFORMATION 
 *GENERATED USING SOFTWARE.
 */
package cgl.narada.wsinfra.deployment;


import java.io.IOException;
import java.io.InputStream;

import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.soap.SOAPMessage;

import cgl.narada.wsinfra.exception.DeploymentException;
import cgl.narada.wsinfra.util.SoapMarshaller;
import cgl.narada.wsinfra.util.SoapPrinter;

/**
   This is the servlet class which can be used by servlets to register 
   themselves for dealing with specific roles. If no role needs to be
   associated with this servlet this can be done by over-riding the abstract
   method corresponding to it.

   @author Shrideep Pallickara
   $Date: 2005/07/29 22:44:01 $
   $Revision: 1.1 $   
*/

public abstract class SOAPServlet extends HttpServlet {

  private SOAPServletContainer soapServletContainer;
  private String moduleName = "SOAPServlet";

  public void init(){}
  
  public abstract String getServletName();
  
  public abstract boolean isRegisteredForSpecificRole();
  
  public abstract String getRole();
  
  
  public void doGet(HttpServletRequest req, HttpServletResponse res) 
    throws IOException, ServletException { 
    try {
      System.out.println(moduleName + "Inside the doGet() Method");
      ServletInputStream servletInputStream = req.getInputStream();
      InputStream inputStream = (InputStream)servletInputStream;
      StringBuffer response = new StringBuffer();           
      
      SOAPMessage soapMessage = 
	SoapMarshaller.unmarshallSoapMessage(inputStream);
      printSoapMessage(soapMessage);
      
      res.setStatus(HttpServletResponse.SC_OK); 
      routeSoapMessageToContainer(soapMessage);
    } catch(Exception e){
      System.out.println("Exception in doGet() "+e);
    }
  }  
  
  
  
  public void doPost(HttpServletRequest req, HttpServletResponse res) 
    throws IOException, ServletException {
    System.out.println(moduleName + "Inside the doPost() Method\n\n");
    doGet(req,res); 
  }


  
  /** Routes the received SOAP message to the SOAP Servlet Container. */
  private void routeSoapMessageToContainer(SOAPMessage soapMessage) 
    throws DeploymentException {
    initializeSOAPServletContainer();
    soapServletContainer.processSOAPMessage(soapMessage, getServletName() );
  } 


  /** Initialize the reference to the SOAP Servlet container. */
  private void initializeSOAPServletContainer() {
    if (soapServletContainer == null) {
      soapServletContainer = SOAPServletContainer.getInstance();
    }
  }


  /** Prints the SOAP Message. */
  private void printSoapMessage(SOAPMessage soapMessage) {
    String soapMsg = null;
    try {
      soapMsg = SoapPrinter.getStringRepresentation(soapMessage);
    } catch (Exception e) {
      System.out.println(moduleName + "Problems printing SOAPMessage"); 
    }
    System.out.println(soapMsg);
  }



}




